A popular UFO-reporting app has been making waves after reportedly recording tens of thousands of mysterious underwater objects up and down the United States’ coastlines, raising eyebrows and leaving ...

When you're talking about radiation, it's not unreasonable to immediately jump to man-made, weaponized radiation and the horrible effects it can have on human life. However, radiation itself is a ...

Videos in this batch show unidentified aerial phenomena but offer few clues to existence of alien life Sign up for the Breaking News US newsletter email The Pentagon on Friday released a second ...

The tranche of never-before-seen documents released by the Pentagon on UFOs includes descriptions of reported sightings - by civilians on Earth and by astronauts on the Moon. The documents, spanning ...

Marina Abramovic’s Rhythm 0 remains one of the most discussed performance works of the 20th century because it placed a living person at the centre of an experiment in trust, restraint and public ...

Learn about Earth Day founder Gaylord Nelson (1916–2005) and how environmental disasters of his day inspired the creation of Earth Day in 1970. On December 7, 1972, Apollo 17 astronauts captured a now ...